Physics, asked by ZenCelestial, 1 year ago

How do you find these? how do you know which one ia the atomic no. and no. is mass?
HOW

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Answered by meme85

2

atomic number is always less than mass number

Answered by Anonymous

3

Explanation:

1. 18 IS ATOMIC NUMBER

2. 40 IS ATOMIC MASS

3. 18 IS PROTON / ELECTRON

4. 22 IS NEUTON

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